[PATCH 11/29] IB/mlx4: Use kmalloc_array() in three functions

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Sat, 18 Feb 2017 10:32:32 +0100

Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 drivers/infiniband/hw/mlx4/main.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/mlx4/main.c 
b/drivers/infiniband/hw/mlx4/main.c
index ba6af84cc236..350c9148340e 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -304,7 +304,9 @@ static int mlx4_ib_add_gid(struct ib_device *device,
                ctx->refcount++;
        }
        if (!ret && hw_update) {
-               gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
+               gids = kmalloc_array(MLX4_MAX_PORT_GIDS,
+                                    sizeof(*gids),
+                                    GFP_ATOMIC);
                if (!gids) {
                        ret = -ENOMEM;
                } else {
@@ -359,7 +361,9 @@ static int mlx4_ib_del_gid(struct ib_device *device,
        if (!ret && hw_update) {
                int i;
 
-               gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
+               gids = kmalloc_array(MLX4_MAX_PORT_GIDS,
+                                    sizeof(*gids),
+                                    GFP_ATOMIC);
                if (!gids) {
                        ret = -ENOMEM;
                } else {
@@ -2828,9 +2832,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
                        goto err_counter;
 
                ibdev->ib_uc_qpns_bitmap =
-                       kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) *
-                               sizeof(long),
-                               GFP_KERNEL);
+                       kmalloc_array(BITS_TO_LONGS(ibdev->steer_qpn_count),
+                                     sizeof(long),
+                                     GFP_KERNEL);
                if (!ibdev->ib_uc_qpns_bitmap)
                        goto err_steer_qp_release;
 
-- 
2.11.1